This blog post examines why the land value tax, despite its theoretical fairness and efficiency, struggles to become established as actual policy. It explores various practical obstacles, ranging from the complexity of value assessment to tax resistance and changes in inequality structures.
Tax theory has long presented fairness and efficiency as core principles regarding the criteria for a ‘good tax’. A tax system is considered fair when economic agents bear the tax burden according to their economic capacity or the benefits they derive. Conversely, it is also crucially important that a tax minimizes inefficiency—specifically, the additional losses or costs, known as deadweight loss, that economic agents must bear beyond the tax itself due to the tax distorting their decision-making.
The land value tax proposed by Henry George in the late 19th century has been evaluated as a representative tax meeting these criteria. He argued that if a significant portion of a landowner’s rental income consists of unearned income unrelated to personal effort or contribution, it is desirable to recover this through a land value tax. Land ownership consists of the right to use, the right to dispose, and the right to profit. His fundamental principle was that while the right to use and the right to dispose should be left to the free judgment of individuals, the government should reclaim the portion of the profit right arising from land improvement and utilize it for the benefit of society as a whole. George anticipated that implementing a land value tax would generate sufficient revenue for the state treasury to eliminate other taxes. For this reason, the land value tax was also called the ‘single tax’. He believed that by replacing other taxes, the single tax would eliminate excessive burdens and significantly contribute to economic revitalization. This vision aligned with his consistent belief in advocating for a free market in economic spheres other than land.
The land value tax is evaluated as a fair tax because it taxes unearned income. According to tax theory, the party with lower elasticity among demanders and suppliers bears a greater tax burden. Land, being immovable, is a quintessential inelastic resource. Therefore, the burden of the land value tax is borne entirely by the landowner and not passed on to the tenant. This is the basis for judging the land value tax as a fair tax. Simultaneously, the land value tax is also efficient in minimizing excess burden. Generally, taxing any good or factor of production leads to reduced transaction volumes and price increases, generating excess burden in the process. For instance, taxing automobiles reduces car transactions, and taxing real estate stifles regional development and construction, causing excess burden. However, the land value tax does not reduce land supply, thus avoiding such inefficiencies. When introducing a land value tax alongside reductions in other tax items, excess burden can decrease immediately, potentially revitalizing the overall economy. Research targeting G7 countries has also suggested that such tax reforms could reduce excess burden by 14 to 50% of GDP.
Nevertheless, the land value tax has not been fully implemented in most countries. This is because, despite its theoretical persuasiveness, numerous complex problems arise in practice. First, while taxation on land should ideally be based on the value of the land in its natural, unprocessed state, distinguishing such land in practice is difficult. The challenge is compounded by the difficulty in clearly separating increases in land value from increases in building value. In countries that tax the entire property, including buildings, it is practically difficult to calculate the land value alone, excluding the building, because buildings and land are not appraised separately during transactions. Tax resistance is also a significant factor. If controversies over property rights infringement intensify, even if a land value tax is introduced, the tax rate may not be sufficiently high to secure the expected revenue. Criticism also arises that a land value tax is unlikely to function as the solution to poverty and inequality that Jozzi envisioned.
While wealth inequality a century ago often stemmed primarily from land, land’s share of total wealth today is significantly smaller than in the late 19th century. Land ownership concentration is also lower than in George’s era, raising doubts about the land value tax’s actual capacity to substantially reduce income inequality.
Nevertheless, the land value tax is gaining renewed attention today, intertwined with the issue of ‘externalities’. In areas where large corporations in high-tech industries are located, population influx and job growth occur, but simultaneously, rents surge and congestion increases. In this process, property owners in the area privatize the enormous profits generated by rising land values, while the losses, such as increased rents and congestion costs, are passed on to the entire local population. In this context, the full implementation of a land value tax with high rates could strengthen taxation on unearned income and provide a community-level compensation mechanism for damages caused by externalities.
Today, numerous countries worldwide are reevaluating the land value tax as a system that not only fulfills the classical tax principles of fairness and efficiency but also holds the potential to address structural problems facing modern society, such as deepening inequality, regional disparities, and urban externalities. For the land value tax to become a realistic system, challenges such as ensuring the accuracy of value assessments, mitigating tax resistance, and maintaining policy consistency must be resolved. Nevertheless, its theoretical appeal and policy potential continue to attract widespread interest. In this regard, the land value tax remains a crucial benchmark in discussions about tax systems that consider fairness, efficiency, and sustainability.
